Sunroof Intermittently Inoperative Or Out Of Adjustment - keywords adjust assembly diagnosis encoding inoperative motor operation pes position roof sensor sunroof timing

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Sunroof intermittently inoperative or it does not stop in the correct location.

PROBABLE CAUSE:

Soft Stop settings are incorrect

CORRECTION:

Reinitialize sensor adjust soft stops per procedure below. The models listed are equipped with sunroof with electronic stops that automatically stop the glass panel in three positions: full open, closed, and full vent. Should the sunroof stop automatically in any other position than those mentioned, the motor and mechanism must be re-synchronized. To do this, follow these instructions:

1. Cycle glass to closed position using the sunroof switch.
2. Remove headliner and sunroof assembly from the vehicle.
3. Remove the glass panel from the sunroof assembly.
4. Remove the motor and position encoding sensor (PES) box from the assembly. The PES box is located directly above the motor. Both the motor and the PES box are held in place with screws.
5. Manually turn the gear on the PES box until the timing hole is positioned correctly. This position is the closed position.
6. Manually slide the mechanism in the track until the timing hole in the lift link is aligned with the timing hole in the lifter arm cam. Repeat this on the opposite side. Both mechanisms will now be in the flush or closed position.
7. Attach motor and PES to assembly and test the function of the sunroof.
8. Reinstall assembly and headliner into the vehicle.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.